.code {
    padding: 16px;
    overflow: auto;
    background-color: #f6f8fa;
    border-radius: 3px;
    margin: 20px 0px;
}

.code-copy-btn {
    top: 16px;
    right: 0px;
    width: 80px;
    height: 40px;
    cursor: pointer;
    transition: all .3s;
}